Thanks, Tony. Ed K6UUZ
On Tue, 02 Aug 2005 23:06:07 -0400 "Anthony W. DePrato" <[EMAIL PROTECTED]> writes: > Ed: > the Johnson Thunderbolt is a AB2 amp that uses 4-400A's check out > this amp > i think you might like the layout it uses a roller inductor instead > of a > varicap. > 73 Tony wa4jqs > > At 06:10 PM 8/2/2005 -0700, you wrote: > >I am planning to build a linear amp around a grid driven 4-400 > tube. Can > >anyone suggest where I can find a suitable circuit with component > values. > >I would like band-switching for 80, 40 and 20 meters. I will be > driving > >it with a 25 watt carrier output rice box on AM. I don't like the > one in > >the ARRL 1967 handbook because it requires you to open the lid and > >physically change taps on the coil and change tuning capacitors. I > don't > >have any other older handbooks. Thank you. > > > >Ed K6UUZ > >______________________________________________________________ > >AMRadio mailing list > >Home: http://mailman.qth.net/mailman/listinfo/amradio > >Help: http://mailman.qth.net/mmfaq.html > >Post: mailto:[email protected] > > Anthony W. DePrato WA4JQS > EXTRA - HEAVY CLASS > Since 1962 > South Sandwich Island Antarctic Dxpedition Group > VP8BZL VP8SSI 3Y0PI V31SS ZD8JQS WA4JQS/4K1 WA4JQS/KC4 WA4JQS/ZS1 > CQ DX HALL OF FAME # 35 > A1-OP FISTS # 10573 AMI > > ______________________________________________________________ > AMRadio mailing list > Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > >
